alligators are reptiles.gators in the sewers are just an urban myth – they just couldn’t survive down there.but When alligators start showing up in people’s toilets, doing your business becomes risky business, the grossologists believe Something fishy (reptilian) is definitely going on! Maybe it has something to do with the inventor, T.P. Skinner, selling the Gator-Guard 5000,a gator in the toilet trapping system?? Or could it be something else? They find out it is Lance Boil and everyone holds it in so they wont get the. Alligator to bite them on the behind.